Hatch construction



Nov. 23, 1937. BONSALL 2,100,127

HATCH CONSTRUCTION Filed Feb. 6, 1937 2 Sheets-Sheet l NOV. 23, 1937. c D BONSALL 2,100,127

HATCH CONS TRUCTIO N Filed Feb. 6, 1957 Q 2 Sheets-Sheet 2 Patented Nov. 23, 1937 r 2,100,127 HATCH coNsraucrnoN Charles David 'Bqn al tt bur h; P assi n! r to P, H. Murphy Oompany,-New Kensington 3a., a corporation of Pennsylvania In the accompanying drawings, which form 1%! part of this specification and wherein like hqls r er to l k pa tswherever they oc ur,

1;, 111s a p an; ewmofthe end ort ch of a metal refrigerator car roof provided with a hatch can 'r'u tion. mbodyin my iavht qh;

15 Fig-g2 is a, r 'a n tialcross-section on the ine-2: 2 in F a-1,;v r I Q 1.31% 3 s, a r cal pa tia 'lo is tudinal sect qn on th'eline 3-:3 inFi'ei I Fi 4 is an lars d, irasmenar Sammie B le-1 a'simil r seeti r "the hatch r me s c red't eeth'e ah to' the roqfsheeti'and i c 'fi s; '1 and: :8 see lonssimi a j m g 11+ li stra hs tw mod fied fa ms f h c cqnst u 1 jliheimetal' car roof illustrated in the accompant diate roof sheets I and '2, respectively,'-that span theca f from side;plate 3 'toiside plate 3with their eaves ends supported on and suitably secured-to the outstanding top flanges ofeaves angles 4, whose'depending flanges are suitably secured to the upstanding longitudinal flanges of said side plates, The end and intermediate roof sheets are 1 provided 51611;; their adjacent margins with upstanding flan'ges 5 thatare'straddled by a seam cap Gthat is suitabIy'secured to'said flanges and to the top-flanges of the eaves ang-les '4. .VAt the end oi'the car'Q-the end sheet Iris supported on and suitably securedto the outstanding topflange r bran end plate 'l. The car isprovided with suit able-roof-insulation 8. V i

" AS-ShOWII in Fig. Lthe roof is provided with l one or more -hatchways defined by registering openings} and I0, respectively, in the-end roof sheet and in a'frainework locatedtherebelow.

This'frameworl; comprises a'pairfof s-pace'd parai flel tarlin s i l! 'which x end i om s de late t st side plate' oi the, e with h ir ends secur d drawings comprisesfend and 'intermef ma re m 6, 1937,; Se al Nd- 124, 65.

12 Claimsu (Cl."1085. l)

thereto by suitable brackets I2, and a pair of spa d, pa allel: rossam m mber iiv h re su t ly secure to sai can nes fl t t e 201.15 the eef an ceq era h e h to defin the hatch ayon nin l- Shown in i 2 d 3, the carlines H and cross-members l3 of the f m wo k vo sa l as e preferably comprise angle bars of oblique anglesection arranged with their side flanges converging downwardly and with their top flanges facing outwardly around the hatch opening H].

Mounted in the registering hatchway openings in the end sheet and framework is a metal hatch irame A comprising a lower section I4 that extends below the level of the roof, and an upper section l5 that, extends above said level. The lower hatch frame section I4 has downwardly converging sides, which conform to the downwardly converging side flanges of the oblique angled frame members II and I3, and a continuous outstanding top flange I6 that rests flatwise 1 onthe top flanges of said members and extends shown in thedrawings, the side walls of the up per section converge upwardly and are bent inwardly and thence downwardly at the top of said section to form a combined stiffening and cover supporting rim H. The upper and lower sections of the hatch frame are secured together preferably by tack welds l8 that are spaced apart around the frame inside thereof in the angle befurther secured vtegether and to the end roof sheet by a weld IQ of rnetalthat is added on the top flange N5 of the lower section between the iii-UNITED STATES ATENT OFFICE .35 tween the top flange of the lower section and the s de wall of heun er s ct on, id s ons are ed e of said. penin a d th we end f the I upper ec ion and. or a rigid w a he f JQ nt hat conn s said sectio n to said roo Sheet around the hatch opening 9 therein.

. y 1 Ih h eihbeiore desc ibed ha ch onstruction section l4 of the hatch frame fitting in the opening I defined by the carlines H and cross frame members I3 and with the outstanding top flange l6 of said section resting flatwise on the tops of said members.

The modified hatch construction shown in Fig. '7 is similar to that shown in Fig; 6, except that the upper section I? of the metal hatch frame has parallel side walls instead of upwardly converging side walls.

In the modified hatch constructionillustrated in Fig. 8, the lower hatch frame section is like those previously described; but the upper hatch frame section ia has upwardly diverging side' The construction hereinbefore described has" several advantages. The two sections of the hatch frame may be secured together at the place of manufacture and the assembled frame shipped to its place of application and then secured to the hatch roof'sheet before the latter is applied to the car. This hatch 'frame and roof sheet assembly may then be placed in position on the car as a unit and the roof sheet secured tothe 'car substructure with or without securing the hatch frame to the carline assembly. The here inbefore described construction dispenses with the need for flanging the hatch roof sheet around the hatch opening'therein and thus eliminates the accurate shop work required in obtaining a perfect 'fit of said flange around the hatch frame; and the opening of the hatch sheet is made large enough to. accommodate misalinement of said opening and the portion of the metal hatch frame fitting therein. The weld along the edge of the openingin the hatch sheet forms a rigid waterproof connection between the hatch frame .sections and the hatch sheet} and the removal of said weld permits the removal and replacement of the hatch sheet without disturbing the hatch frame, whose sections are still held together by the tack welds.

What I claim is: V I 1. In a hatch construction for car roofs, a roof sheet provided with a hatch opening, a metal hatch frame for said opening comprising upper and lower body sections, said lower body section being located entirely below said roof sheet and said upper body section having its'lower portion disposed in said hatch opening and seated on said lower body section, and a continuous weld securing said upper and lower body sections and said roof sheet together around said hatch openmg. i

2. In a hatch construction for carroofs, a r00 sheet provided with a flangeless hatch opening,

on said lower section, and means for securing said sections together and to said roof sheet aroun the flangeless hatch opening therein.

3. In a hatch construction for car roofs, a roof sheet provided with a flangeless hatch opening, a metal hatch frame for said opening comprising a lower section that terminates at its upper edge in an outstanding top flange that extends beneath said sheet around the hatch opening therein and an. upper section resting on and welded to said flange and having a loose, fit within said opening,

and a continuous weld securing said sections together and to said roof sheet around the edge of the flangeless hatch opening therein.

4. a hatch construction for car roofs, a roof sheet having arflangeless opening therein, a frame located beneath said roof sheet and defining an opening registering with the opening therein, a. metal-hatch frame comprising top and bottom sections welded together, the bottom sectionfltting in the opening defined by said frame and having an outstanding top flange resting on said frame and extending beneath said roof sheet around the opening therein, said upper section being supported on the topflange of said lower section inside the opening in said roof sheet and terminating at its top ,in laterally and downwardly bent flange, and a continuous weld for securing said sections together and to said roof 'metal hatch frame for said opening, said hatch frame comprising a lower section having an out standing top flange extending beneath said sheet around the hatch opening therein and an upper section having a flanged base portion disposed in said opening and seatedflatwise on said top flange, and a continuous i weld securing said flanges together and to said roof sheetaround the. edge of the flangelesshatch opening therein. 6. In a hatch construction for car roofs, a roof sheet provided with a flangeless hatch opening, a metal hatch frame for said opening, said hatch frame comprising a lower section having an outstanding top flange extending beneath said sheet around the hatch opening therein'and an upper section having an outstanding base flange dis posed in said opening and seated flatwise on said top flange, and a continuous weld securing said flanges together and to said roof sheet around the edge of the flangeless hatch opening therein.

7. Apreassembled unit for a car roof comprising a roof sheet having a flangeless hatch opening therein, a metal hatch frame comprising upper and lower body sections, and meansfor rigidly securing said sections together and to said roof sheet around the edge of said flangeless hatch opening. 7

8. A preassembled unit for a car roof comprisinga roof sheet having a flangeless hatch opening therein, a metal hatch frame for said opening comprising a bottom section having a. top flange extending beneath said roof sheet 7 around the opening therein anda top section having its lower portion supported on said top flange entirely within said opening and terminating at its top in a laterally and downwardly bent flange,

and a weld extending continuously around ,the

edge of said flangeless opening for securing said sections together and to said roof sheet 9. A preassembled unit for a {car roof comprising a roof sheet having a flangeless hatch opening therein, a metal hatch frame comprising a bottom section having an outstanding to'p flange extending beneath the roof sheet around the opening therein and a top section having a base flange supported flatwise on said top flange entirely inside of said opening, and a continuous weld for securing said flanges together and to said roof sheet around said flangeless hatch opening.

10. A metal hatch frame comprising a lower section having an outstanding top flange, and an upper section having a base flange resting on and welded to said top flange.

11. A metal hatch frame comprising" a lower section having an outstanding top flange, and an upper section having an outstanding base flange that rests on and is welded to said top flange and terminates short of the outer edge of the latter.

12. A metal hatch frame comprising a lower section having a top flange, and an upper section having a base flange resting on and welded to said top flange.

CHARLES DAVID BONSALL. 

